This invention relates to a modified state measuring device, measured by a laser light emitted from the light waveguide unit and an optical fiber for emitting a probe to an object, is coupled to the end of the optical fiber probe and the probe unit having the magnetic pole generated to output the stimulation signal to the measurement object, is emitted from the light source unit, and transmits the incident light to the first optical fiber path as a probe, is reflected by the measurement target object and the optical splitter and outputting the light traveling in the reverse direction through the optical fiber probe to the second path, which distributes the light beam that is output through the second path to the third path and the fourth path to the optical splitter splitter and, first adjusting the first mirror, a second mirror and a spaced apart distance for the beam splitter of the first mirror for reflecting the light which is going through a fourth path for reflecting the light that travels through the third path and driving, a second driving unit for adjusting the angle of the beam splitter of the second mirror, the first mirror and the imaging section which is reflected from the second mirror image the interference image output from the beam splitter, the driving part generates stimulation and controlling, provided with spaced-apart distance of the first mirror and the angle of the second mirror controls the first driving unit and second driving unit to be adjusted to the interference images taken by the imaging unit to diagnose the state of deformation of the measurement object (v) a analysis. According to this modified state measuring apparatus, the structure is simple, provides the advantage of being able to measure the strain state by the shear interference for the element to deformation by the method according to the vibration stimulation.본 발명은 변형 상태 측정장치에 관한 것으로서, 광원 유니트에서 출사된 레이저 광을 도파하여 측정대상체에 출사하는 프로브 광섬유와, 프로브 광섬유의 종단에 결합되어 측정대상체에 자극신호를 출력하는 자극생성부를
